Dispenser



E. K. MORLOK DISPENSER July 30, 1935.

Filed Nov. 14, 1954 Patented July 30, 1935 UNITED (STATES;

PATENT "OFFICE 6 Cla ms- ,My invention relates tonew and useful improvements in a dispenser and has for one of its objects to provide an exceedingly simple and effective device of this character which will dis- 5 pense a syrupy fluid in accurately measured quantities.

Another object of the invention is to construct a dispenser including means for positively forcing a quantity of a syrupy fluid from the dispenser.

A further object of the present invention is to fashion the dispenser in a manner that any residue remaining in the nozzle, which might produce an undesirable drip, will be withdrawn from said nozzle and returned to the dispensing chamber or main body of fluid.

A still further object of this invention is to provide a dispenser particularly adapted for dispensing a syrupy fluid in predetermined measured quantities by forcible ejection and removing any residue from the nozzle by a suction action created by the same means which ejects the fluid.

With these and other objects in view, this in- Vention consists of the'combination of elements and details of construction hereinafter described and then specifically set forth in the claims.

In order that those skilled in the art to which this invention appertains, may understand how to make and use the same, I will describe its constructionin detail, referring by'numerals to the accompanying drawing, in WhlChZ. i

Fig. l is a view, partly in elevation and partly in section, of a dispenser constructed in accordance with the present invention and showing a container thereon.

Fig. 2 is a top View of the container removed, and V Fig. 3 is a section on the line 33 'of Fig. 1.

In carrying out my invention as herein embodied l represents a base which may have a depression ii in its top surface to receive a receptacle l2, such as a'cup or glass, into which a syrupy fluid is to be dischargeiusually' for making a beverage.

The base I0 supports a hollow standard [3 which, for purposes of illustration, is shown produced as an element separate from the base and secured thereto by suitable fastening means'M, such as screws. This standard includes a vertical lower portion I5 and a forwardly inclined or oblique upper portion I5. At the front of the upper end of the standard is formed a head I! offset relative to the vertical portionof the stand- 2rd. The formation of the standard and head is such that a recess I8 is providedv betweensaid dispenser with the head an d a part of the standard fora purpose that will presently be apparent.

I The top of the head h as an upwardly project ing flange 19 enclosing a space which constitutes a dispensing chamber 28 and from the bottom of 5 said chamber. rises a. central projection 2| the perimeter of which is spaced from the flange to form a groove for the re ceptio n of a gasket 22". Any suitable container 23 is removably mounted in the dispensing chamber anditemporarily held in place by means shown, for purposes of illustration only, as lugs projectingfmm the inside of the flange. The 'conjtainer' 23 may be provided with 'a lid '25 so that said container can be re filled without removing'it from the dispenser. While I have shown and described the container as attached'to'the dispenser, it will be obvious that it might be producedas an element thereof and such a construction is contemplated by my invention. i In the top of thehead is an oblique, measuring chamber 26' communicating with'a bore 2l'pass ing through the head below the measuring chamher and extending'through the externallythreade e'dlug 28 lying within the recess [8. A hole .29, in

alignment with thebore 21, is formed in the bot.- tom wall of the recess I8. and communicates with the interior of the hollow standard IS. A duct '30 is formed in'the head-and extends downwardly and generally forwardly at an angle to the bore 3 21 with which it communicates adjacent to'the measuring chamber, but spaced from the latter an appreciable distance. This duct constitutes the nozzle of the dispenser and terminates at the surface of the head, in a nozzle teat 3|.

"Slidably mounted in the bore 27 is a piston rod 32, the upper end of which normally projects through the measuring chamber into the dispense. ing chamber while the lower end extends through the hole 23 into'the hollow standard. This piston rod is packed with suitable packing 33 held in place by the gland nut 34 screwed on the lug 28. The piston rod carries a piston 35 on its extreme upper end which snugly'fits the measuring chamher, and said upper end of the piston rod is reduced in diameter, as at 36 so that a passageway is provided through the bore 21 to the duct 3!] when and only when said reduced end of the piston rod is within the bore a suflicient distance to overlap the inner end of the duct.

The piston rod 32 is reciprocated by any suit ableoperating mechanism andjonly for purposes of illustration such a mechanism is shown as comprising a cylindrical rack gear 3] on the lower end bi said si er; r d it wh meshes m n- 456 tal pinion 38, fixed to a shaft 39 journalled in the sides of the hollow standard and having an operating handle on a projecting end of said shaft. The operating handle is normally urged to its retracted position, indicated in dotted lines in Fig. 1, by a spring 40 having one end connected to a hook 4| on the pinion and the other end anchored to a rod 42 underlying the lower end of the hollow standard.

The operation of the dispenser is as follows:-- Whenever the operating mechanism is actuated for dispensing the fluid in the container, which I fluid fills the dispensing and measuring chambers, the piston will be moved toward said measuring chamber finally entering the same and confining a predetermined amount' of the liquid, which is a measured quantity equal the capacity of said measuring chamber. As the lower end of the reduced part of the piston rod is the same, or approximately the same, distance from the nozzle duct 30 as is the piston from the mouth of the measuring chamber, just about the time the piston enters the measuring chamber, the lower part of the reduced end of the piston rod will uncover the-nozzle duct 30. Further movement of the operating elements will cause the piston to actually force the liquid from the measuring chamber, through the passageway provided by the reduced end of the pistonorod within the bore 21, thence through and out of the nozzle into a receptacle resting on the base. After the dispensing operation there often is a residue remaining in the nozzle which would produce a drip if left to remain. This conditionis not only unsightly, but

is unclean. H

In the present device, during the retraction of the piston, a suction action is created which will draw .back any residue liquid in the nozzle or hanging to the nozzle teat, so that it will be returned to the measuring chamber prior to the nozzle duct;being closed,'thereby eliminating any drip. j

. Of course I do not wish to be limited to the exact details of construction herein illustrated and described, as these may be varied within the limits of the appended claims without departing from thespirit of my invention.

Having thus fully described my invention, what I claim as new and useful is;

1. In a dispenser, a base, anda hollow standard supported by said base and having a vertical lower portion and an oblique upper portion, a head forwardly offset from the standard at its upper end, said head provided with a dispensing chamber and having an oblique measuring chamber in communication with the dispensing chamber and extending inwardly from said dispensing chamber, said head also having an oblique bore leading from the bottom of the measuring chamber and further provided with a ductconstituting a nozzle leading from said bore at a point spaced from the bottom of the measuring chamber and extending in a generally downward and forward direction at an angle to the bore to a location on the surface of the head a pistonrod slidably mounted in said bore, a piston on the upper end of said rod ordinarily disposed in the dispensing chamber and adapted to enter the measuring chamber to confine a quantity of fluid which will be a predetermined measured amount, said piston rodhaving a reduced portion contiguous the piston,said reducedportion being of sufficient length to reach and uncover the nozzle ductwhen the piston reaches the mouth of the measuring chamber during an advance movement of the piston rod and piston whereby a passageway is provided between the measuring chamber and said nozzle duct, and means to reciprocate said piston rod and its piston to cause the piston to force fluid from the measuring chamber and subsequently create a suction action for withdrawing any residue fluid remaining in the nozzle.

2. The structure in claim 1 in which the standard has a recess exposing an intermediate part of the piston rod, and means located within said recess for packing the piston rod.

3. In a dispenser, a head having a measuring chamber with a bore leading therefrom and further provided with a nozzle communicating with said bore adjacent but spaced from said measuring chamber and extending to a point on the surface of the head, a piston rod reciprocatingly mounted in said bore and having a reduced inner end projecting through and beyond the measuring chamber when in its normal rest position, said reduced end'prcviding a passageway between said measuring chamber and the nozzle when the piston rod is initially advanced, a'piston on the inner end of the piston rod for entrance into the measuring chamber to force a fluid from it through the nozzle, and a spring to return the piston and its rod to their normal rest positions, the return movement of said piston creating a suction in the nozzle which will return any residue to the measuring chamber.

4. In afdispenser, a standard, a head at the upper end of said standard and having a measuring chamber in its upper face with a bore leading therefrom and further provided with a nozzle communicating with said bore in spaced relation to said measuring chamber and extending to a point on the surface of the head, a piston rod slidably mounted in the bore and ordinarily covering the nozzle when said piston rod is in its normal retracted position, said rod having a reduced inner end to uncover said nozzle and provide a' passageway between said nozzle and the measuring chamber as the rod is initially advanced, a piston on the inner end of said rod ordinarily completely disposed beyond and outside of the measuring chamber to permit a fluid to flow into said chamber, means by which said piston is advanced and caused to enter the measuring chamber to confine a quantity of the fluid in said chamber and finally force the fluid from the measuring chamber through the nozzle, and a springto return the piston and its rod to their normal retracted positions and cause the piston to create a suction action which returns any residue to the measuring chamber.

5. In a dispenser, a base, a hollow standard supported by said base, a head carried by the standard, said head having a dispensing chamber and also a measuring chamber in communication with the dispensing chamber extending inwardly from said dispensing chamber, said head further having a bore leading from the bottom of the measuring chamber and also provided with a duct constituting a nozzle leading from said bore at a location spaced from the bottom of the measuring chamber to a point on the surface of the head, a

.piston rod slidably mounted in said bore, a piston contiguous the piston and being of sufiicient length to reach and uncover the nozzle duct when the piston reaches the mouth of the measuring chamber during an advance movement of the piston rod and piston whereby a passageway is provided between the measuring chamber and said nozzle duct, and means to reciprocate said piston rod and its piston to cause the latter to force fluid from the measuring chamber and subsequently create a suction action for withdrawing any residue fluid remaining in the nozzle.

6. In a dispenser, a head having a dispensing chamber in its upper face with a measuring chamber below and communicating with said dispensing chamber and said measuring chamber having a bore leading therefrom and said head further provided With a nozzle communicating with said bore adjacent but spaced from said measuring chamber and extending to a point on the surface of the head, a piston rod reciprocatingly mounted in said bore and having a reduced inner end projecting through said measuring chamber into the dispensing chamber .while said piston rod is in its rest position, said reduced end providing a passageway between the measuring chamber and the nozzle when the piston rod is initially advanced, a piston on the inner end of the piston rod which with said inner end of said piston rod will be immersed in the fluid to be dispensed, means whereby the piston and its rod may be manually actuated to cause said piston to enter the measuring chamber and force a uniform EDWARD K. MORLOK. 

